Fun, super simple observation: in a finite game with non-constant payoffs, all NE live on the boundary of the CE set. The proof notes that every NE satisfies one of the (non-constant) inequality constraints defining the CE outcome distributions with equality.

When someone asks me to attend any social gathering

When you see the ArXiv economic theory newsletter today and realize that one person pretty much coauthors every single paper…

My auction theory lectures at the University of Tokyo: youtu.be/kClhz_k6530?si… youtu.be/L7pFTjxgbjw?si… youtu.be/4qW14b5ym5w?si… youtu.be/YegJS0IgyD8?si…

How does information shape monopoly outcomes under interdependent values? We characterize payoff sets across three classes of information structures. With no restrictions, buyers can obtain the entire surplus even though the seller chooses a price econtheory.org/ojs/index.php/…

An inspiring and lovely read: sfu.ca/economics/comm…

An interesting piece related to an interesting conference. Probably we need more conferences like that :-)

Cool paper

🚨 Call for Papers! The 2026 EAYE Annual Meeting will take place at the University of the Basque Country 🇪🇸 on 18–20 May 2026 📅 Submit your paper or extended abstract by 1 Dec 2025 via CMT #EAYE2026 #EconTwitter

Bundling against Learning. arxiv.org/abs/2509.16396

Mathematics is a language, a tool. If you think you have a better language/tool to understand "human behavior", then write a paper and show it to us. It will be much more effective than periodically whining about "math" or "formalism" in economics.

Forthcoming in the AER: "Sequential Learning Under Informational Ambiguity" by Jaden Yang Chen. aeaweb.org/articles?id=10…

UNC Econ is hiring 3 tenure-track positions (unc.peopleadmin.com/postings/307461) and 1 teaching-track position (unc.peopleadmin.com/postings/307482). We are interested in new PhDs as well as advanced assistant professors/associates. Please apply and feel free to reach out!

Happy to announce the re launching of the Micro Theory Workshop backed by the Econometric Society. Great keynotes, nice city. sites.google.com/view/microecon…

Persuasion with Verifiable Information. arxiv.org/abs/2510.08251

Seems super fun!

Cool paper!

Cool paper on arXiv.org arxiv.org/abs/2510.16608

Extreme Points in Multi-Dimensional Screening. arxiv.org/abs/2412.00649

The Economics of Convex Function Intervals. arxiv.org/abs/2510.20907